Home / 422,121.85-582,527.91-231,135.19

Finding the Fourth Proportional to 422,121.85, 582,527.91 and 231,135.19

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Solution

The fourth proportional to 422,121.85, 582,527.91 and 231,135.19 is: 318,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,121.85 : 582,527.91 = 231,135.19 : x
  2. Step 2: Convert to fraction form
    422,121.85/582,527.91 = 231,135.19/x
  3. Step 3: Cross multiply
    422,121.85x = 582,527.91 × 231,135.19
  4. Step 4: Simplify right side
    422,121.85x = 134,642,699,158.15
  5. Step 5: Solve for x
    x = 134,642,699,158.15/422,121.85
  6. Step 6: Final answer
    x = 318,966.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.